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mini_crystal_wiki_spec.cr
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mini_crystal_wiki_spec.cr
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require "spec"
require "./mini_crystal_wiki"
require "crystagiri"
require "file_utils"
require "string_scanner"
describe "Wiki" do
it "StringScanner scans strings" do
s = StringScanner.new("a aabbcc c")
s.eos?.should be_false
s.scan(/a/).should eq("a")
s.scan(/\s*/).should eq(" ")
s.scan(/aabbcc/).should eq("aabbcc")
s.scan(/\s*/).should eq(" ")
s.scan(/c/).should eq("c")
s.eos?.should be_true
converters = [
{ /aabbcc/, ->(s : String){ "<" + s + ">"} },
{ /\s+/, ->(s : String){ s } },
{ /a/, ->(s : String){ "z" } },
{ /b/, ->(s : String){ "y" } },
{ /c/, ->(s : String){ "x" } },
]
s = StringScanner.new("a aabbcc c")
result = ""
while ! s.eos? # This is the pattern our lexer uses
converters.each do |(pattern, response)|
got = s.scan(pattern)
unless got.nil?
result += response.call(got)
break
end
end
end
result.should eq("z <aabbcc> x")
end
it "marks up simple markup" do
sample = activate_wiki_format("this is ''em''phatic\nthis is '''bold'''")
reference = "this is <em>em</em>phatic<br/>\nthis is <strong>bold</strong><br/>\n"
sample.should eq(reference)
end
it "escapes HTML" do
sample = activate_wiki_format(">scr&eam<")
reference = ">scr&eam<<br/>\n"
sample.should eq(reference)
end
it "expands two, three, or five ticks" do
html = activate_wiki_format("me '''''galo'''''mania")
html.includes?("me <strong><em>galo</em></strong>mania").should be_true
html = activate_wiki_format("'''''megalomania'''''")
html.includes?("<strong><em>megalomania</em></strong>").should be_true
end
it "expands ---- into a horizontal rule" do
html = activate_wiki_format("one more\n----\nsilver dollar")
html.should eq("one more<br/>\n<hr/>silver dollar<br/>\n")
end
it "provides concise internal links" do
got = activate_wiki_format("FrontPage")
got.should match(/href="\/FrontPage/)
doc = assert_html(got)
doc.xpath("//a[ '/FrontPage' = @href ]/text()").to_s.should eq("FrontPage")
assert_xpath(doc, "//a[ '/FrontPage' = @href ]/text()", /FrontPage/)
got = activate_wiki_format("baBaLoo")
got.should_not match(/href/)
got = activate_wiki_format("WinThirty2")
got.should_not match(/href/)
end
it "makes external links hot" do
html = activate_wiki_format("oxford commas: https://twitter.com/davejorgenson/status/1176243940728684547 yo")
html.should match(/oxford commas:/)
doc = assert_html(html)
doc.xpath("//a[ 'https://twitter.com/davejorgenson/status/1176243940728684547' = @href and '_blank' = @target ]/text()").to_s.should eq("https://twitter.com/davejorgenson/status/1176243940728684547")
end
it "makes external links to graphics extremely hot" do
html = activate_wiki_format("fractal garden: http://flea.sourceforge.net/gardenOfEschereanDelights.jpg yo")
html.should match(/fractal garden:/)
doc = assert_html(html)
assert_xpath doc, "//img[ 'http://flea.sourceforge.net/gardenOfEschereanDelights.jpg' = @src ]"
end
it "does not confuse internal and external links" do
s = "yo: https://www.google.com/?q=HowToPissOffYourPair InternalLink"
html = activate_wiki_format(s)
html.should contain("yo: <a href=\"https://www.google.com/?q=HowToPissOffYourPair\" target=\"_blank\">https://www.google.com/?q=HowToPissOffYourPair</a> ")
html.should contain(" <a href=\"/InternalLink\">InternalLink</a>")
end
it "Crystagiri calls xpath on nodes correctly" do
xml = "<html><body><hr/></body></html>"
doc = Crystagiri::HTML.new(xml)
node = doc.nodes.xpath_node("/html/body")
node.should_not be_nil
fail("bad") if node.nil? # See https://forum.crystal-lang.org/t/var-should-not-be-nil-does-not-eliminate-var-of-nil-from-subsequent-type-inference/1165
hr = node.xpath_node("hr")
hr.should_not be_nil
hr.not_nil!.name.should eq("hr")
end
it "converts a page to HTML" do
wiki = assemble_test_wiki()
File.write("test_pages/KozmiqueBullfrog.page", "Hello ''World''\nFrontPage")
html = wiki.format_page("KozmiqueBullfrog")
html.should match(/\A<!DOCTYPE html>/)
html.should match(/Hello/)
doc = assert_html(html)
assert_xpath(doc, "/html/body//h1", /\AKozmiqueBullfrog\Z/)
node = assert_xpath(doc, "/html/body/article[ contains(text(), 'Hello') ]", /Hello/)
assert_xpath doc, "//article/em", /World/
assert_xpath doc, "//article/a[ '/FrontPage' = @href ]", /FrontPage/
assert_xpath node, "em", /World/
button = assert_xpath(doc, "/html/body/table/tbody/tr/td[2]/button", /Edit/)
# p button.attributes["onclick"].methods
button.attributes["onclick"].to_s.should eq(" onclick=\"window.location.href = '/KozmiqueBullfrog/edit';\"")
end
it "delivers an empty edit page" do
wiki = assemble_test_wiki()
File.delete("test_pages/SamplePage.page") if File.exists?("test_pages/SamplePage.page")
html = wiki.edit_page("SamplePage")
doc = assert_html(html)
assert_xpath(doc, "/html/body//h1", /\ASamplePage\Z/) # TODO make this a search button
form = assert_xpath(doc, "/html/body/form[ 'post' = @method and '/SamplePage' = @action ]")
textarea = assert_xpath(form, "textarea[ '20' = @rows and '80' = @cols ]")
textarea.text.should eq("")
assert_xpath form, "input[ 'submit' = @type and 'Save' = @value ]"
end
it "delivers an empty edit page when you hit a page that doesn't exist" do
wiki = assemble_test_wiki()
File.delete("test_pages/SamplePage.page") if File.exists?("test_pages/SamplePage.page")
html = Wiki.serve("test_pages", "GET", "/SamplePage", "new content")
doc = assert_html(html)
assert_xpath(doc, "/html/body//h1", /\ASamplePage\Z/)
form = assert_xpath(doc, "/html/body/form[ 'post' = @method and '/SamplePage' = @action ]")
textarea = assert_xpath(form, "textarea[ '20' = @rows and '80' = @cols ]")
textarea.text.should eq("")
assert_xpath form, "input[ 'submit' = @type and 'Save' = @value ]"
end
it "delivers a full edit page" do
wiki = assemble_test_wiki()
File.write("test_pages/SamplePage.page", ">sam&ple<")
html = wiki.edit_page("SamplePage")
doc = assert_html(html)
assert_xpath(doc, "/html/body//h1", /\ASamplePage\Z/)
form = assert_xpath(doc, "/html/body/form[ 'post' = @method ]")
textarea = assert_xpath(form, "textarea[ 'content' = @name and '20' = @rows and '80' = @cols ]")
textarea.text.should eq(">sam&ple<")
end
it "serves a wiki page" do
assemble_test_wiki()
File.write("test_pages/KozmiqueBullfrog.page", "Hello ''World''\nFrontPage")
html = Wiki.serve("test_pages", "GET", "/KozmiqueBullfrog", "")
doc = assert_html(html)
assert_xpath doc, "//article[ contains(text(), 'Hello') ]"
end
it "serves an edit page" do
assemble_test_wiki()
File.write("test_pages/KozmiqueBullfrog.page", "Hello ''World''\nFrontPage")
html = Wiki.serve("test_pages", "GET", "/KozmiqueBullfrog/edit", "")
doc = assert_html(html)
assert_xpath doc, "//textarea[ contains(text(), 'Hello') ]"
end
it "posts an edit page" do
assemble_test_wiki()
File.write("test_pages/KozmiqueBullfrog.page", "overwrite me")
html = Wiki.serve("test_pages", "POST", "/KozmiqueBullfrog", "new content")
doc = assert_html(html)
assert_xpath doc, "//article[ contains(text(), 'new content') ]"
File.read("test_pages/KozmiqueBullfrog.page").should eq("new content")
end
end # TODO add a DOCTYPE
# TODO if a link is not found in the pages folder, display it with a ?
def assemble_test_wiki
FileUtils.mkdir("test_pages") unless Dir.exists?("test_pages")
wiki = Wiki.new("test_pages")
return wiki
end
class Object
macro methods
{{ @type.methods.map &.name.stringify }}
end
end
def assert_html(html)
return Crystagiri::HTML.new(html).nodes
end
def assert_xpath(doc : XML::Node, path : String, matcher = //)
node = doc.xpath_node(path)
fail(path + " not found in " + doc.to_s) if node.nil?
node.text.to_s.should match(matcher)
return node
end
def activate_wiki_format(str)
wiki = Wiki.new("test_pages")
return wiki.format_article(str)
end